ES51955 datasheet(1/31 Pages) CYRUSTEK

Teilenummer	ES51955

Bauteilbeschribung	Dual Display/Inrush

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Hersteller	CYRUSTEK [Cyrustek corporation]

Direct Link	http://www.cyrustek.com.tw

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v2.3

10/06/25

1

ES51955(5000counts)

Dual Display/Inrush

Features

• 5000 counts dual LCD display

• 128L QFP package

• 3V DC power supply

• ADC Conversion rate : 3.3 times/s

• Full automatic measurement

*Voltage measurement: 500.0mV – 1000V

*Current measurement: 50.00A/500.0A,

500A/5000A

*Flame rod DCuA mode measurement:

500.0uA/5000uA both manual ranges

*Smart auto check for R/S/D/C mode

Resistance: 500.0Ω~5.000MΩ

Capacitance: 5.000nF~500.0uF

(Taiwan patent no.: 326361)

*Not contact AC electric field detection

*Frequency mode active on sub-display for ACA

500.0Hz ~ 5000Hz

*Resistance measurement: 500.0Ω – 50.00MΩ

*Capacitance measurement:

5.000nF – 50.00mF

(Taiwan patent no.: 323347, 453443)

*Frequency counter with duty cycle display:

500.0Hz – 50.00MHz

5% – 95% (< 10kHz)

• ZERO function for DCA mode

• Voltage high crest factor detection

(Taiwan patent no.: 234661)

• Voltage & Current measured simultaneously

ACV+ACA, DCV+DCA

• Diode measurement & continuity check

• Auto range temperature mode(500.0 0C /5000 0C)

• Temperature mode with internal scale translation

circuit from 0C to 0F

• Push functions:

*Single Select key operation:

Zero for DCA

Hz for ACA

*Range change function

*Inrush function: ACA clampmeter only

*Data hold function

*Back light function

*Semi-auto Calibration Operation

(Taiwan patent no.: 367334)

• Low pass filter for ACA measurement

• Band-gap reference voltage output

• CE selection (DC/AC 1010V, DC/AC 610V)

• LCD segment check when power on

• Auto power off (30min/15min)

• Sleep state indicative signal output

• Re-power on

• On-chip buzzer driver

• High Voltage (HV) danger indication

• Low battery multi-level detection

Description

ES51955 is an integrated analog-to-digital

converter (ADC) with dual 5,000-count LCD

display, which 4-digit main-display (AC/DC

Voltage) and 4-digit sub-display (AC/DC

Current), automatic range selection, and 3V

DC power supply. ES51955 could be

designed for a clamp-meter with V & A

measurement

simultaneously.

Automatic

range selection is provided for voltage

(AC/DC)

measurement,

resistance

measurement,

current

measurement,

capacitance measurement, and frequency

counter.

Other

features

include

inrush

function, offset removing feature for DCA

clampmeter,

data

holding,

duty

cycle

measurement,

diode

measurement,

temperature

measurement,

continuity

checking, multi-level low battery detection,

auto power off, re-power on, backlight driver,

and buzzer output driver.

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